| band | <genetics> Refers to a narrow portion of a chromosome, which has been darkened by interaction with a dye. Each human chromosome displays a unique pattern of bands and can be identified by its pattern. (14 Nov 1997) |
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| band 3 protein | A ubiquitous membrane transport protein found in the plasma membrane of diverse cell types and tissues, and in nuclear, mitochondrial, and golgi membranes. It is the major integral transmembrane protein of the erythrocyte membrane, comprising 25% of the total membrane protein and occurring at 1 million copies per cell. It exists as a dimer and provides a channel for the transport of anions across the membrane. (12 Dec 1998) |
| band cell | <pathology> Immature neutrophils released from the bone marrow reserve in response to acute demand. (18 Nov 1997) |
| band centrifugation | <technique> High-speed centrifugation inwhich molecules float at a point wheretheir density equals that in a gradient of cesium chloride or sucrose. (12 Jan 1998) |
| band fish | <zoology> A small red fish of the genus Cepola; the ribbon fish. Source: Websters Dictionary (01 Mar 1998) |
| band III protein | <protein> A 90 kD protein embedded in the surface of the human erythrocyte membrane, identified as the major anion transport/exchange protein. When the red blood cell is in the lungs, brings chlorine ion into the cell in exchange for bicarbonate. Analogous proteins exist in other erythrocytes. A dimeric transmembrane glycoprotein, with binding sites for many cytolasmic proteins, including ankyrin, on its cytoplasmic domain. (18 Nov 1997) |
| band neutrophil | <pathology> Immature neutrophils released from the bone marrow reserve in response to acute demand. (18 Nov 1997) |
| band of Giacomini | A slender whitish band, the attenuated anterior continuation of the dentate gyrus (fascia dentata), crossing transversally the surface of the recurved part of the uncus gyri parahippocampalis. Synonym: band of Giacomini, cauda fasciae dentatae, frenulum of Giacomini, tail of dentate gyrus. (05 Mar 2000) |
| band of Kaes-Bechterew | A band of horizontal myelinated fibres in the most superficial part of the third layer of the isocortex. Synonym: Bechterew's band, layer of Bechterew, line of Bechterew, line of Kaes. (05 Mar 2000) |
| band remover | <dentistry> A special plier which the orthodontist uses to remove bands from your teeth (08 Jan 1998) |
| band-shaped keratopathy | A horizontal, gray, interpalpebral opacity of the cornea that begins at the periphery and progresses centrally; occurs in hypercalcaemia, chronic iridocyclitis, and Still's disease. (05 Mar 2000) |
| bandage | 1. A piece of cloth or other material, of varying shape and size, applied to a body part to make compression, absorb drainage, prevent motion, retain surgical dressings. 2. To cover a body part by application of a bandage. (05 Mar 2000) |
| bandage sign | A tourniquet test for capillary fragility, often positive in the presence of severe thrombocytopenia. See: capillary fragility test. Synonym: bandage sign, Hess' test, Rumpel-Leede sign. (05 Mar 2000) |
| bandages | Material used for wrapping or binding any part of the body. (12 Dec 1998) |
| bandala | A fabric made in Manilla from the older leaf sheaths of the abaca (Musa textilis). Source: Websters Dictionary (01 Mar 1998) |
| absorption band | The range of wavelengths or frequencies in the electromagnetic spectrum where radiant energy is absorbed by passage through a gaseous, liquid, or dissolved substance; it is exploited for analytical purposes in colourimetry or spectrophotometry, and is usually described in terms of the wavelength where maximum absorbance occurs (i.e., lambdamax). (05 Mar 2000) |
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| amniotic band syndrome | <syndrome> A disorder present in the newborn infant in which constriction rings or bands, causing soft tissue depressions, encircle digits, extremities, or limbs and sometimes the neck, thorax, or abdomen. They may be associated with intrauterine amputations. (12 Dec 1998) |
| annular band | The strands of amniotic tissue adherent to the embryo or foetus; they may cause constriction of embryonic limbs. See: congenital amputation. Synonym: amniotic adhesions, annular band, constriction ring, Simonart's bands, Simonart's ligaments, Simonart's threads, Streeter's bands. (05 Mar 2000) |
| anogenital band | The first indication of the perineum in the embryo. (05 Mar 2000) |
| atrioventricular band | The bundle of modified cardiac muscle fibres that begins at the atrioventricular node as the trunk of the atrioventricular bundle and passes through the right atrioventricular fibrous ring to the membranous part of the interventricular septum where the trunk divides into two branches, the right crus of the atrioventricular bundle and the left crus of the atrioventricular bundle; the two crura ramify in the subendocardium of their respective ventricles. Synonym: fasciculus atrioventricularis, atrioventricular band, Gaskell's bridge, His' band, His' bundle, bundle of His, Keith's bundle, Kent's bundle, Kent-His bundle, ventriculonector. (05 Mar 2000) |
| A-V band | The bundle of modified cardiac muscle fibres that begins at the atrioventricular node as the trunk of the atrioventricular bundle and passes through the right atrioventricular fibrous ring to the membranous part of the interventricular septum where the trunk divides into two branches, the right crus of the atrioventricular bundle and the left crus of the atrioventricular bundle; the two crura ramify in the subendocardium of their respective ventricles. Synonym: fasciculus atrioventricularis, atrioventricular band, Gaskell's bridge, His' band, His' bundle, bundle of His, Keith's bundle, Kent's bundle, Kent-His bundle, ventriculonector. (05 Mar 2000) |
| Bechterew's band | A band of horizontal myelinated fibres in the most superficial part of the third layer of the isocortex. Synonym: Bechterew's band, layer of Bechterew, line of Bechterew, line of Kaes. (05 Mar 2000) |
| Broca's diagonal band | A white fibre bundle descending in the precommissural septum toward the base of the forebrain, immediately rostral to the lamina terminalis; at the base, the bundle turns in the caudolateral direction; traveling through a ventral stratum of the innominate substance alongside the optic tract, it fades before reaching the amygdala. (05 Mar 2000) |
| Mach's band | A relatively bright or dark band perceived in a zone where the luminance increases or decreases rapidly. (05 Mar 2000) |
| Maissiat's band | A fibrous reinforcement of the fascia lata on the lateral surface of the thigh, extending from the crest of the ilium to the lateral condyle of the tibia. Synonym: tractus iliotibialis, iliotibial band, Maissiat's band. (05 Mar 2000) |
| ventricular band of larynx | One of the pair of folds of mucous membrane stretching across the laryngeal cavity from the angle of the thyroid cartilage to the arytenoid cartilage; they enclose a space called the rima vestibuli or false glottis. Synonym: plica vestibularis, false vocal cord, plica ventricularis, ventricular band of larynx, ventricular fold. (05 Mar 2000) |
| marginal band | A bundle of equatorially located microtubules that stabilise the biconvex shape of platelets and avian erythrocytes. They are unusual in that they do not derive from the centrosomal microtubule organising centre. (18 Nov 1997) |
| Gennari's band | A prominent white line appearing in perpendicular sections of the visual cortex (Brodmann's area 17) at about mid-thickness of the cortical gray matter, corresponding to the particularly well developed outer line of Baillarger of that cortical area, and composed largely of tangentially disposed intracortical association fibres. Synonym: Gennari's band, Gennari's stria, stripe of Gennari. (05 Mar 2000) |
| Casparian band | <plant biology> Region of plant cell wall specialised to act as a seal to prevent back leakage of secreted material (analogous to tight junction between epithelial cells). Found particularly where root parenchymal cells secrete solutes into xylem vessels. (18 Nov 1997) |
| matrix band | A metal or plastic band secured around the crown of a tooth to confine restorative material to be adapted into a prepared cavity. (05 Mar 2000) |